A progressive bonus structure will exist for the first 70 % of tokens sold in the ICO. (the-blockchain.com)
Some of these factors include the total number of tokens sold; the complete volume invested in making a single - time purchase; and different stage bonuses. (icotokennews.com)
TheDAO's crowdsale started on 28 April and lasted until 28 May with DAO tokens sold for ethers. (coinfox.info)